A stamping die for the production and processing of a motor iron core

Abstract

The present invention discloses a stamping die for the production and processing of motor cores, which relates to the technical field of stamping dies. It includes a transportation component for transporting a conveying plate. The transportation component recovers the waste chips generated during the stamping of the plate, and the transportation component fixes the stamping component. The stamping component includes a template detachably installed on the transportation component. A plurality of sets of adjusting blocks I are slidably arranged at the lower end of the template. A plurality of sets of stamping heads of different types are detachably arranged on the adjusting blocks I. By driving the adjusting blocks I to change the positions of the stamping heads, the stamping heads are fixed on the template, improving the stability of the stamping heads during operation. The present invention further includes a disassembly component for replacing and overhauling the stamping heads on the adjusting blocks I. The disassembly component automatically removes the stamping heads from the adjusting blocks I and replaces the stamping heads when problems occur. The present invention automatically replaces different types of stamping heads, improving the applicability and stamping effect of the present invention.

Description

Technical Field

[0001] The present invention relates to the technical field of stamping dies, and particularly relates to a stamping die for the production and processing of motor cores. Background Art

[0002] The motor core is the core component of the motor magnetic circuit, which is formed by laminating and riveting silicon steel sheets formed by stamping. The surface insulation coating is used to block eddy currents and optimize the magnetic permeability. Its precision punching slots and lamination compactness directly determine the motor efficiency, electromagnetic noise and power density. At the same time, progressive die high-speed stamping and material layout design greatly reduce production costs. It is the key carrier to balance motor performance, reliability and manufacturing costs, and is evolving towards ultra-low loss and high integration directions such as amorphous alloys and 3D printing.

[0003] Quick replacement of the stamping head of the stamping die can greatly shorten the die change time, reduce the downtime loss, improve the flexibility level of the production line, support multi-variety and small-batch production. At the same time, the standardized interface reduces the manual adjustment error, prolongs the die life, and is compatible with the automation system, increasing the production capacity utilization rate by 20% - 30%, significantly enhancing the enterprise's rapid response ability to market demands.

[0004] The Chinese invention patent with the publication number CN118719954A discloses a stamping die with a replaceable stamping die head. This device replaces the die head on the die through the provided replacement mechanism to achieve the quick replacement of the die head. However, the installation of the die head by this device is not firm enough, and the die head is prone to falling off during the disassembly process. This device cannot effectively clean the die head. Summary of the Invention

[0005] In view of the above technical problems, the present invention discloses a stamping die for the production and processing of motor cores.

[0006] The technical solution adopted by the present invention to solve the above technical problems is as follows: A stamping die for the production and processing of motor cores includes a transportation component. The transportation component includes a base. A plurality of sets of limit columns are slidably arranged on the base. A support block is slidably arranged on the limit columns. A locking plate is rotatably arranged on the support block. A stamping component and a disassembly component are respectively arranged on both sides of the transportation component. The stamping component includes a hydraulic cylinder installed on the side of the base. A template is arranged on the hydraulic cylinder. The template is installed on the limit columns. A plurality of sets of adjusting blocks one are slidably arranged in the template. A stamping head is detachably arranged on the adjusting block one. A locking column is arranged on the template. A pressing plate is slidably arranged in the stamping head. The pressing plate is attached to the inner wall of the template. The disassembly component includes a bracket. A support plate is slidably arranged on the bracket. A support frame is slidably arranged on the support plate. An installation frame is slidably arranged on the support frame. Two sets of replacement frames are slidably arranged on the installation frame.

[0007] Further, a limiting plate and a material plate are arranged on the base, and the limiting plate is attached to the material plate.

[0008] Further, a pressing rod is arranged on the side of the template, a cleaning rack is arranged on the side of the base, an airbag is arranged inside the cleaning rack, an opening is arranged on the airbag, and the opening of the airbag faces the template.

[0009] Further, the first adjusting block and the stamping head are fixed by bolts.

[0010] Further, an adjusting rack is rotatably arranged inside the stamping head, a rotating block is arranged on the adjusting rack, a set of connecting blocks are rotatably arranged at both ends of the rotating block, and the connecting blocks are respectively rotatably connected to a set of pressing plates.

[0011] Further, two sets of limiting blocks are slidably arranged on the adjusting rack, a second spring is arranged between the adjusting rack and the limiting blocks, a concave hole is arranged on the stamping head, and the limiting blocks are inserted into the concave hole.

[0012] Further, a set of first placement racks and a set of second placement racks are respectively arranged on both sides of the bracket, a detection rack is slidably arranged at the lower end of the bracket, a detection head and a jetting rack are arranged on the detection rack, an adjusting block two is slidably arranged inside the jetting rack, and a blowing port is rotatably arranged on the adjusting block two.

[0013] Further, a fastening block is rotatably arranged on a set of replacement racks, and a disassembly block is slidably arranged on the replacement racks.

[0014] Further, a fixing block is arranged on the other set of replacement racks, the fixing block is attached to the locking column, and a disassembly block is slidably arranged at the upper end of the fixing block.

[0015] The beneficial effects of the present invention compared with the prior art are as follows: The transportation component provided by the present invention automatically recovers the debris generated during stamping, and at the same time, the transportation component determines the position of the template, improving the accuracy of the process during stamping. The stamping component provided by the present invention is detachably provided with multiple stamping heads, and the positions of the stamping heads are automatically adjusted according to the working conditions. Moreover, the stamping heads are simultaneously fixed to the first adjusting block and the stamping head, improving the stability of the stamping heads during stamping and preventing the stamping heads from shifting during stamping and affecting the stamping effect. The disassembly component provided by the present invention automatically removes the stamping heads from the first adjusting block and the template, improving the disassembly efficiency of the stamping heads. At the same time, after the stamping heads are removed, the stamping heads are detected and cleaned to ensure the stamping effect of the stamping heads. If the stamping heads cannot continue to work, the disassembly component automatically replaces the stamping heads, improving the stamping efficiency of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view of the overall structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 3 It is a schematic diagram of the structure of the transportation component of the present invention;

[0019] Figure 4 is Figure 3 A sectional view of the structure in the A-A direction in

[0020] Figure 5 is Figure 4 An enlarged schematic diagram of the structure at A in

[0021] Figure 6 It is a schematic diagram of the partial structure of the transportation component of the present invention;

[0022] Figure 7 It is a front view of the structure of the stamping component of the present invention;

[0023] Figure 8 is Figure 7 A sectional view of the structure in the B-B direction in

[0024] Figure 9 It is a right view of the structure of the stamping head of the present invention;

[0025] Figure 10 It is a sectional view of the structure of the stamping head of the present invention;

[0026] Figure 11 It is a schematic diagram of the installation position of the adjusting frame and the limit block of the present invention;

[0027] Figure 12 It is a left view of the structure of the disassembly component of the present invention;

[0028] Figure 13 is Figure 12 A sectional view of the structure in the C-C direction in

[0029] Figure 14 It is a schematic diagram of the structure of the disassembly component of the present invention;

[0030] Figure 15 It is a schematic diagram of the partial structure of the disassembly component of the present invention.

[0031] Reference signs: 1 - transportation component; 2 - stamping component; 3 - disassembly component; 101 - base; 102 - conveyor belt; 103 - scraper; 104 - limiting plate; 105 - material plate; 106 - limiting column; 107 - support block; 108 - locking plate; 109 - first spring; 201 - hydraulic cylinder; 202 - template; 203 - cleaning frame; 204 - airbag; 205 - pressing rod; 206 - first adjusting block; 207 - stamping head; 208 - bolt; 209 - pressing plate; 210 - adjusting frame; 211 - rotating block; 212 - connecting block; 213 - limiting block; 214 - locking column; 301 - bracket; 302 - detection frame; 303 - jetting frame; 304 - detection head; 305 - first placement frame; 306 - second placement frame; 307 - replacement frame; 308 - second adjusting block; 309 - support plate; 310 - support frame; 311 - air outlet; 312 - mounting frame; 313 - disassembly block; 314 - fixing block; 315 - fastening block. Detailed implementation manners

[0032] Refer to Figures 1 to 15 As shown in the figure, a stamping die for the production and processing of motor cores includes a transportation component 1 for transporting the material plate 105 and recycling the waste generated during the stamping of the material plate 105. A stamping component 2 is detachably arranged on the transportation component 1. The transportation component 1 automatically positions the stamping component 2, and locks the stamping component 2 after it reaches a fixed position. A plurality of stamping heads 207 are detachably arranged on the stamping component 2, and the positions of the stamping heads 207 are automatically adjusted on the template 202 according to the working requirements. A disassembly component 3 for disassembling the stamping heads 207 is arranged on the side of the base 101. When the disassembly component 3 disassembles the stamping heads 207, it detects the stamping heads 207 to determine whether the stamping heads 207 can continue to perform stamping work, and cleans the bottom of the stamping heads 207 to improve the stamping effect of the stamping heads 207.

[0033] The transport component 1 includes a base 101, a conveyor belt 102 is rotatably arranged at the bottom of the base 101, a scraper 103 is also arranged at the lower end of the base 101, the scraper 103 is in contact with the bottom of the base 101, the conveyor belt 102 is used to receive the waste generated when the material plate 105 is stamped, the scraper 103 scrapes the surface of the conveyor belt 102 to ensure the neatness of the conveyor belt 102, a material plate 105 is placed on the upper end of the base 101, a group of limit plates 104 are slidably arranged on both sides of the base 101, the limit plates 104 and the material plate 105 are limited, a plurality of groups of limit columns 106 are slidably arranged on the base 101, a spring 109 is arranged between the limit column 106 and the base 101, and both sides of the limit column 106 A group of support blocks 107 are slidably provided, and a locking plate 108 is rotatably provided on the upper end of the support block 107. When the template 202 is installed on the limiting column 106, the template 202 presses the support block 107, and the support block 107 slides on the limiting column 106. When the template 202 reaches the working position, the locking plate 108 is driven to rotate on the support block 107, and the locking plate 108 fits with the template 202 to fix the template 202. When the template 202 is working, it presses the support block 107 and the limiting column 106, and the limiting column 106 slides on the base 101. At the same time, the spring 109 is compressed. When the template 202 is reset, the spring 109 assists the template 202 to reset.

[0034] The stamping assembly 2 includes a hydraulic cylinder 201. A template 202 is provided at the movable end of the hydraulic cylinder 201. A plurality of sets of first adjusting blocks 206 are slidably arranged in the template 202. A plurality of stamping heads 207 with different shapes are detachably arranged on the first adjusting blocks 206. When it is necessary to adjust the position of the stamping head 207, the first adjusting blocks 206 are driven to slide on the template 202. The stamping head 207 and the first adjusting block 206 are fixed by bolts 208. A locking column 214 is arranged on one side of the stamping head 207. An adjusting frame 210 is rotatably arranged on the other side of the stamping head 207. A rotating block 211 is arranged on the adjusting frame 210. The rotating block 211 is rotatably connected to the stamping head 207. A set of connecting blocks 212 are rotatably arranged at both ends of the rotating block 211. Pressing plates 209 are slidably arranged on both sides of the stamping head 207. The connecting blocks 212 are rotatably connected to the pressing plates 209. When the adjusting frame 210 is driven to rotate, the adjusting frame 210 drives the rotating block 211 to rotate. The rotating block 211 drives the connecting blocks 212 to rotate. The connecting blocks 212 drive the two pressing plates 209 to slide on the stamping head 207. The pressing plates 209 are in contact with the inner wall of the template 202, completing the fixation of the stamping head 207 and the template 202. Two limiting blocks 213 are slidably arranged at one end of the adjusting frame 210 facing the stamping head 207. Rounded corners are arranged on the limiting blocks 213. A second spring is arranged between the limiting blocks 213 and the adjusting frame 210. Two concave holes are arranged at the position of the stamping head 207 facing the adjusting frame 210. Rounded corners are arranged on the concave holes. When the adjusting frame 210 drives the rotating block 211 to rotate so that the pressing plates 209 are in contact with the inner wall of the template 202, the adjusting frame 210 synchronously drives the two limiting blocks 213 to align with the concave holes. The limiting blocks 213 are inserted into the concave holes by the deformation restoring force of the second spring, completing the fixation of the adjusting frame 210. When it is necessary to reset the pressing plates 209, the adjusting frame 210 is driven to rotate in the reverse direction. The adjusting frame 210 drives the limiting blocks 213 to rotate on the stamping head 207. Since rounded corners are arranged on both the limiting blocks 213 and the concave holes, and the force when the adjusting frame 210 is reset is greater than the supporting force of the second spring, at this time, the limiting blocks 213 are compressed into the adjusting frame 210 by extrusion, completing the reset of the pressing plates 209. A cleaning frame 203 is arranged on the side of the base 101. An airbag 204 is arranged on the cleaning frame 203. An opening is arranged on the airbag 204. The opening of the airbag 204 faces the template 202. A pressing rod 205 is arranged on the side of the template 202. When the template 202 is stamping, the pressing rod 205 is driven to press the airbag 204. When the airbag 204 is pressed, it blows air to clean the surface of the material plate 105.

[0035] The disassembly component 3 includes a bracket 301. On both sides of the bracket 301, there are respectively a placement rack one 305 and a placement rack two 306. The placement rack one 305 and the placement rack two 306 fix the punching head 207 through electromagnet blocks. A set of punching heads 207 to be replaced are placed on the placement rack one 305. A detection rack 302 is slidably arranged at the lower end of the bracket 301. A detection head 304 is arranged on the detection rack 302, and the detection head 304 detects the bottom of the punching head 207. A jet rack 303 is arranged on the detection rack 302. An adjusting block two 308 is slidably arranged in the jet rack 303. A blowing port 311 is rotatably arranged on the adjusting block two 308, and the blowing port 311 blows and cleans the punching head 207. A support plate 309 is slidably arranged on the bracket 301. A support frame 310 is slidably arranged in the support plate 309. An installation frame 312 is slidably arranged on the support frame 310. Replacement racks 307 are slidably arranged on both sides of the installation frame 312. A fastening block 315 is rotatably arranged on a set of replacement racks 307. The fastening block 315 is inserted into the adjusting frame 210. When driving the fastening block 315 to rotate, the fastening block 315 drives the adjusting frame 210 to rotate. A set of disassembly blocks 313 are slidably arranged on the set of replacement racks 307 where the fastening block 315 is arranged. The disassembly blocks 313 are inserted into the bolts 208. On the other set of replacement racks 307, there is a fixing block 314. The fixing block 314 is inserted into the locking column 214. An electromagnet block is arranged on the fixing block 314, and the fixing block 314 fixes the locking column 214 through the electromagnet block to realize the fixation of the punching head 207. Another set of disassembly blocks 313 are slidably arranged on the fixing block 314, and the disassembly blocks 313 are inserted into the bolts 208. When it is necessary to remove the punching head 207 from the adjusting block one 206, drive the support plate 309 to slide on the bracket 301. The support plate 309 drives the support frame 310 and the installation frame 312 to move. When the installation frame 312 drives the replacement racks 307 to align with the set of punching heads 207 to be removed, drive the support frame 310 to slide in the support plate 309. The support frame 310 drives the installation frame 312 and the replacement racks 307 to approach the punching head 207. The two sets of replacement racks 307 are respectively inserted on both sides of the punching head 207. When the fastening block 315 aligns with the adjusting frame 210, the two sets of disassembly blocks 313 respectively align with the bolts 208, and the fixing block 314 aligns with the locking column 214, drive the two sets of replacement racks 307 to approach each other. At this time, the fastening block 315 is inserted into the adjusting frame 210, the fixing block 314 is inserted into the locking column 214, and the two sets of disassembly blocks 313 are both inserted into the bolts 208. Drive the electromagnet block on the fixing block 314. At this time, the fixing block 314 and the locking column 214 are fixed. While driving the two sets of disassembly blocks 313 to rotate, drive the disassembly blocks 313 to slide. The disassembly blocks 313 remove the two sets of bolts 208. At the same time, drive the fastening block 315 to rotate. The fastening block 315 drives the adjusting frame 210 to rotate, so that the two sets of pressing plates 209 are reset, and the fixation of the punching head 207 with the template 202 and the adjusting block one 206 is released. Then drive the support frame 310 to reset.The support frame 310 drives the removed replacement frame 307 to align with the detection head 304, drives the detection frame 302 to slide on the support 301, the detection frame 302 drives the air jet frame 303 to approach the detection head 304 and the stamping head 207. The detection head 304 performs image recognition detection on the bottom of the stamping head 207 to detect whether there is damage or other conditions on the stamping head 207. Drives the air outlet 311 to rotate on the second adjusting block 308, the air outlet 311 faces the stamping head 207, drives the air outlet 311, and the air outlet 311 blows high-pressure gas to the stamping head 207 to clean the stamping head 207. At the same time, drives the second adjusting block 308 to rotate on the air jet frame 303, and the second adjusting block 308 drives the air outlet 311 to rotate to increase the cleaning range of the air outlet 311. When the stamping head 207 needs to be replaced, drives the support plate 309 and the support frame 310 to move. The support frame 310 places the stamping head 207 to be replaced on the second placement rack 306, and removes the stamping head 207 on the replacement frame 307 and places it on the template 202.,

[0036] Working principle: During operation, place the material plate 105 on the base 101, drive the hydraulic cylinder 201, and the hydraulic cylinder 201 places the template 202 on the support block 107. The template 202 presses the support block 107, and the support block 107 slides on the limit post 106. When the template 202 reaches the working position, drive the locking plate 108 to rotate on the support block 107, and the locking plate 108 fits with the template 202 to complete the installation of the template 202. When stamping the material plate 105, drive the hydraulic cylinder 201 to work, the hydraulic cylinder 201 drives the template 202 to slide reciprocally, the template 202 stamps the material plate 105, and pushes the material plate 105 to slide on the base 101. The template 202 completes the stamping of the material plate 105. During the stamping of the material plate 105, drive the conveyor belt 102 to rotate, and the conveyor belt 102 recovers the debris generated by stamping.

[0037] When it is necessary to disassemble the stamping head 207, the driving locking plate 108 is reset, the driving hydraulic cylinder 201 moves, and the hydraulic cylinder 201 removes the template 202 from the limit post 106. Subsequently, the driving support plate 309 slides on the support 301, and the support plate 309 drives the support frame 310 and the mounting frame 312 to move. When the mounting frame 312 drives the replacement frame 307 to align with a set of stamping heads 207 to be removed, the driving support frame 310 slides within the support plate 309, and the support frame 310 drives the mounting frame 312 and the replacement frame 307 to approach the stamping head 207. The two sets of replacement frames 307 are respectively inserted on both sides of the stamping head 207. When the fastening block 315 aligns with the adjusting frame 210, the two sets of disassembly blocks 313 respectively align with the bolts 208, and the fixing block 314 aligns with the locking post 214, the two sets of replacement frames 307 are driven to approach each other. At this time, the fastening block 315 is inserted into the adjusting frame 210, the fixing block 314 is inserted into the locking post 214, and the two sets of disassembly blocks 313 are both inserted into the bolts 208. The electromagnet block on the fixing block 314 is driven. At this time, the fixing block 314 is fixed to the locking post 214. While driving the two sets of disassembly blocks 313 to rotate, the disassembly blocks 313 are driven to slide, and the two sets of bolts 208 are removed by the disassembly blocks 313. At the same time, the fastening block 315 is driven to rotate, and the fastening block 315 drives the adjusting frame 210 to rotate, so that the two sets of pressing plates 209 are reset, releasing the fixation of the stamping head 207 to the template 202 and the adjusting block one 206. The driving support frame 310 is reset to achieve the disassembly of the stamping head 207.

[0038] When detecting the removed stamping head 207, the driving support frame 310 is moved, and the support frame 310 drives the removed replacement frame 307 to align with the detection head 304. The driving detection frame 302 slides on the support 301, and the detection frame 302 drives the air jet frame 303 and the detection head 304 to approach the stamping head 207. The detection head 304 performs image recognition detection on the bottom of the stamping head 207 to detect whether there are damages or other conditions on the stamping head 207. The air blowing port 311 is driven to rotate on the adjusting block two 308, and the air blowing port 311 faces the stamping head 207. The air blowing port 311 is driven, and the air blowing port 311 blows high-pressure gas to the stamping head 207 to clean the stamping head 207. At the same time, the adjusting block two 308 is driven to rotate on the air jet frame 303, and the adjusting block two 308 drives the air blowing port 311 to rotate, improving the cleaning range of the air blowing port 311.

[0039] If it is necessary to replace the stamping head 207, drive the support plate 309 to slide on the bracket 301. The support plate 309 drives the support frame 310 to move, and the support frame 310 drives the stamping head 207 to align with the second placing rack 306. Activate the electromagnet block on the second placing rack 306 to fix the stamping head 207. Subsequently, drive the support plate 309 and the support frame 310 to remove the stamping head 207 on the first placing rack 305. Drive the support plate 309 and the support frame 310 to move, and the support frame 310 drives the mounting frame 312 and the stamping head 207 to move. When the stamping head 207 aligns with a set of first adjusting blocks 206 to be installed, drive the mounting frame 312 to slide on the support frame 310. The mounting frame 312 drives the stamping head 207 to rise, and the stamping head 207 is inserted into the first adjusting block 206. At this time, while driving the disassembly block 313 to rotate, drive the two disassembly blocks 313 to approach each other. At this time, the disassembly block 313 screws the bolt 208 into the space between the first adjusting block 206 and the stamping head 207 to fix the first adjusting block 206 and the stamping head 207. At the same time, drive the fastening block 315 to rotate. The fastening block 315 drives the adjusting frame 210 to rotate, the adjusting frame 210 drives the rotating block 211 to rotate, the rotating block 211 drives the connecting block 212 to rotate, and the connecting block 212 drives the two pressing plates 209 to slide on the stamping head 207. The pressing plates 209 are in contact with the inner wall of the template 202 to complete the fixation of the stamping head 207 and the template 202.

Claims

1. A stamping die for the production and processing of a motor iron core, including a transportation component (1), the transportation component (1) includes a base (101), and is characterized in that: A plurality of limiting columns (106) are slidably arranged on the base (101). A support block (107) is slidably arranged on the limiting column (106). A locking plate (108) is rotatably arranged on the support block (107). A stamping assembly (2) and a disassembly assembly (3) are respectively arranged on both sides of the transportation assembly (1). The stamping assembly (2) includes a hydraulic cylinder (201) installed on the side of the base (101). A template (202) is arranged on the hydraulic cylinder (201). The template (202) is installed on the limiting column (106). A plurality of adjusting blocks one (206) are slidably arranged in the template (202). A stamping head (207) is detachably arranged on the adjusting block one (206). A locking column (214) is arranged on the template (202). A pressing plate (209) is slidably arranged in the stamping head (207). The pressing plate (209) is attached to the inner wall of the template (202). The disassembly assembly (3) includes a bracket (301). A support plate (309) is slidably arranged on the bracket (301). A support frame (310) is slidably arranged on the support plate (309). A mounting frame (312) is slidably arranged on the support frame (310). Two replacement frames (307) are slidably arranged on the mounting frame (312); The adjusting block one (206) and the stamping head (207) are fixed by bolts (208); An adjusting frame (210) is rotatably arranged in the stamping head (207). A rotating block (211) is arranged on the adjusting frame (210). A connecting block (212) is rotatably arranged at both ends of the rotating block (211). The connecting blocks (212) are respectively rotatably connected to a pressing plate (209); Two limiting blocks (213) are slidably arranged on the adjusting frame (210). A second spring is arranged between the adjusting frame (210) and the limiting blocks (213). A concave hole is arranged on the stamping head (207). The limiting blocks (213) are inserted into the concave hole; A placing frame one (305) and a placing frame two (306) are respectively arranged on both sides of the bracket (301). A detection frame (302) is slidably arranged at the lower end of the bracket (301). A detection head (304) and a jetting frame (303) are arranged on the detection frame (302). An adjusting block two (308) is slidably arranged in the jetting frame (303). A blowing port (311) is rotatably arranged on the adjusting block two (308); A fastening block (315) is rotatably arranged on one replacement frame (307). A disassembly block (313) is slidably arranged on the replacement frame (307); A fixing block (314) is arranged on the other replacement frame (307). The fixing block (314) is attached to the locking column (214). A disassembly block (313) is slidably arranged at the upper end of the fixing block (314).

2. The stamping die for the production and processing of an electric motor iron core according to claim 1, wherein: A limiting plate (104) and a material plate (105) are arranged on the base (101). The limiting plate (104) is attached to the material plate (105).

3. A stamping die for the production and processing of a motor iron core according to claim 1, characterized in that: A pressing rod (205) is provided on the side of the template (202), a cleaning rack (203) is provided on the side of the base (101), an airbag (204) is provided inside the cleaning rack (203), an opening is provided on the airbag (204), and the opening of the airbag (204) faces the template (202).

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